have a blue fit

have a blue fit

To become extremely angry. Primarily heard in UK. Don't have a blue fit—I wasn't trying to insult you.
See also: blue, fit, have
Farlex Dictionary of Idioms.

have a pink/blue ˈfit

(British English, informal) be very angry: If your mother catches you smoking, she’ll have a pink fit.
See also: blue, fit, have, pink
Farlex Partner Idioms Dictionary
See also:
  • have a pink/blue fit
  • out of a clear (blue) sky
  • out of the blue
  • BSOD
  • blue screen of death
  • blue boys
  • blue suit
  • blue suits
  • blue coats
  • damn it to blue blazes